. >>> david gregory described a 30-round magazine during a "meet the press." >> a magazine for ammunition that carries 30 bullets. if we replaced them and only have a magazine that carries five or ten bullets, isn't it possible we could reduce a carnage? >> i don't believe that's going to make one difference. >> we don't know if that was real or just a prop but here's the law, having a large magazine is illegal in d.c. if the device holds more than ten rounds of ammunition, whether or not it's attached to an actual gun. >> 32 minutes after the hour. we turn to controversy in philadelphia with a new plan aimed at curbing unsafe sex among teens by providing free condoms in schools. according to the cdc, 61% of high school students in the city have had sexual intercourse. 40% of those sexually active teens did not use a condom and about one-quarter of new hiv infections in philadelphia alone are among teenagers. condom vending machines are being installed over christmas break in that city and school nurse's offices in 22 philadelphia high schools, with the highest rates of std infection. don